A large company has claimed that the standard deviation of the monthly incomes of their employees is less than or equal to $120. To test their claim, a random sample of 76 employees of the company was taken; and it was determined that the standard deviation of their incomes was $135. Using ? = .10, test the company's claim.

What will be an ideal response?


?

H0: ?2? 14400
Ha: ?2> 14400
chi-square = 94.92 > 91.061; p-value is between .05 and .1; reject H0

Business

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